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Assessing the stability of canopy maps produced from UAV-LiDAR data
Citation
Wallace, L, Assessing the stability of canopy maps produced from UAV-LiDAR data, Proceedings of 2013 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 21-26 July 2013, Melbourne, Australia, pp. 3879-3882. ISBN 978-1-4799-1114-1 (2013) [Refereed Conference Paper]
Copyright Statement
Copyright 2013 IEEE
DOI: doi:10.1109/IGARSS.2013.6723679
Abstract
The use of Unmanned Aerial Vehicles (UAVs) as a remote sensing platform offers a unique combination of high resolution data collected within relatively low cost targeted missions. This paper investigates the use of UAV-borne Light Detecting and Ranging (LIDAR) systems (UAVL) as a platform to gain knowledge of the canopy structure within forested environments. Repeat datasets were collected with a UAVL system over six Eucalyptus Globulus plots with varying levels of canopy cover. The relative stability of four metrics for estimating canopy structure, First Cover Index (FCI), Last Cover Index (LCI), a Grid based method (GCI) and an Alpha shape based method (ACI) were assessed using these repeat datasets. It is shown that the repeatability of the GCI metric is subject to variations in plot level point density (standard deviation of 4.06 %). Instabilities in the FCI (1.91 %) and LCI (2.28 %) metrics were found to be related to the properties of the sensor and the lasers interaction with the canopy. The ACI metric (1.86 %) was found to be the most stable.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | nnmanned aerial vehicles, LiDAR, forestry, canopy cover |
Research Division: | Engineering |
Research Group: | Geomatic engineering |
Research Field: | Photogrammetry and remote sensing |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the environmental sciences |
UTAS Author: | Wallace, L (Dr Luke Wallace) |
ID Code: | 89843 |
Year Published: | 2013 |
Web of Science® Times Cited: | 17 |
Deposited By: | Geography and Environmental Studies |
Deposited On: | 2014-03-17 |
Last Modified: | 2014-08-05 |
Downloads: | 0 |
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